Road tool



oct. 29, 1929.

N. o. VINCENT 1,733,841l

' ROAD TooL Filed Feb- 2, 1929 2 sheets-sheet 1 M 2V2'rloerzv oan 29, 1.929.. j N, o, VINCENT 1,733,841

ROAD Tool. Filed Feb. 2, 1929 2 Sheets-sheet 2 gwwmtofc N0, Vin een? Patented @ct 29, 1929 u l 'l NOAH YOLIVERfvrlvcniv'r, or JOPLIN, MrssoURrfY YRolin roof. n

Application rfiled February 2, 1929. Serial'No. 5337,101.

This invention 'relates to a road tool,and ture-which may behandled byonemamwhich moreparticularly'to apparatus Vfor applying may be. readily 'andxcheaply manufactured, and manipulating filling material, such as which Vwillzloe` durablefan'd efficient in service, tar or the rlike, which yis used in filling the andlmay be'modiied toenable its'use` in situav cracks of concrete roadways. tions where, in its-ordinary capacity, rit'would 55 As is well known to those familiarwith the prove insuiiicien't. 1 l art, modernconcrete'roads make one of two These and other objects I attain by the conprovisions for expansion and contraction struction shown in 'the accompanying drawthereof. The road 'is 'either subdivided 1in ings, kwherein for thei purpose :of 'illustration proces's'of manufacture into aseries'of'blocks is yshowna preferred embodiment of my fin- 60 which are slightly spaced from -one another vention and v'v'he'reinz-A andthe cracks thus formed filled Withtar'or Figure-l is 'a side elevationrof ajroad tool some other moisture-'proof substance, or the constructed in accordance withimy invention; road is cast in one `piece andwhen :traction Figure 2 is a p'lan view thereof, portions 1'5 forms cracks therein, these cracks are filled being broken away;

with such a substance'. ln either construe Figure 3 is an enlarged :plan vliew -of'the tion, the amount ofthe -:filling employed must burner'and blade mounting; be suflicientto fill the'crackfat-the 'time when Figure V4; is a transverse sectional view this crack is widest-orduring extremely cold through thebladeg' "'26 weather, with the result that yin the heat of Figure 5 is a,longitudinalsectional view 70 y summer, the lilling 'is softened and byl reducthrough-theblade; Y tion vof the width of the crack, causedzby eX- Figureis an illustration showing a modipansion offthe -roadfis forced upwardly 'from fied arrangement employed when greater heat the crack, forming at the upper surface Vof is desired. A the crack a bump which roughens' theroad Referring'now more particularly to the 75A bedand increases the liability to `breakage :in drawings, thewnumeral A'1'0 *generally 'lesige addition Ato causing discomfort 'to the Ioccunates a preferably metallic frame, -the upper Y pants of vehicles passing thereover. end lof )which forms-'a handle lll. l 'The side Itis accordingly necessary that the'eXcess members n 12 :of this `frame preferably 'con- '30 be removed at this time andfthen replaced. verge toward their'lowerendand arefsecu-red Se work and which, bythe ordinary process Yof ing v15 Vand is preferably vprovided :with a i 59 provide a neat, readilymanipulatable strucvided with a horizontalterminal 2li eXtend Due to thepassage of vehicles thereover, this tov a valve conduit t13 leading fromfa ffuel material is often spread to a considerable eX- supply tankk 14 supportedfbetween Jthese side tent to opposite sides ofthe crack in the form membersy adjacent the' )upper end thereof. of a thin `layer which is extremely difcultto This supply ytank 'has asuitable filling open-v removal', is rendered unfit for subsequent use. pressure pump 16 permit-ting *the "contents An important object of this 'invention'is the thereof Vto be" placedv 'under pressure. The provision of a structure for use either in proconduit '13 communicates with y'atransversely viding these cracks with their original fillings extending header 17, which 'header has `arisor in returning a dispersed filling to `the'crack ing therefrom anoutlet '18 terminating vinv a (JO without destroying the value ofthe material. forwardly extending branch 19 'which5is,` in A further object of the invention is to pro-l turn, connected with `secon'd transverse vide a device of this character which, when header QO'prefer lblyin"the formbf a section 'Y used in the latter capacity, will at once move ofpipe. 1 Y Y r.. j Y the material to the crack to be filled and yEach header 13'7 VandZO'has arigingther 95 smooth andflatten it inthe crack, so as to from at its opposite ends lafn`outlet`21,'the

providcaneat appearance and-asmooth roadupper end o'f which communicat'esthrough way. one branch of a T 22 withthe lower end of a' still further object of the vinvention is to coil 23. rllhe upper end o'fi-thisfcoil "is pro- Vment thereto of a second vsimilar coil under certain circumstances, hereinafter more fully explained. Y

The rea-r header 17hasarranged therebeneath a transversely extending'smoothing blade 27. This smoothing blade is in the form of a perforated plate arcuately curved in a direction transverse to the header 17 and having its forward edge upwardly bent at the center to render this edge concave, as indicated at, 28. The rear edge of the blade is straight and the concavity'is gradually reduced toward this rear edge, so thatY the con.

tacting surface of the bottom of the blade is provided with ka rearwardly converging groove.` U-bolts- 29 `engaging the forward end of the conduit 13 and the forwardly extending branch leading from the header 17 support this blade.V If desired, from theends of the forward header 20, parallel Vbranches 30 may be extended, having arranged thereon a longitudinally'extending series of burners. Theseburners, 'asisthe case of the lburner coils 22, will'have their axes inlclining downwardly-and inwardly toward the center of the-path of movement of the deviceconsidered'as awhole. I Y

`Means are provided for detachably securing tothe frame 10` below the tank .14 thereof a filling material tank 31.- This tank, when A employed, willjbe provided withqan outlet conduit'32 which, in the applied position of the tank, will extend forwardly over the rear header 17 anddischarge immediately in advance of the center. of .the blade through a downturnedoutlet spout 33. VIn vthe discharge line 32, a valve 3,4 will be disposed op- Verated through an extension rod 35 operable byy a person pushing the tool. Under conditions where this tank is employed, an axle 36 is securedtransversely of the lower end of the frame,1which axle is provided with supporting wheelsl 37, sothatthe weight of the ma- Y terial in the"` tank will'not' vplace too great a V,strain yupon the operator. Y y Y Iniil'ling cracks by the use of apparatusof this charactenthe tank31is preferably applied tothe frame and the burners placed in operation. 4'These burners willfservenot only to `heat the material delivered from the, tank but will likewise serve to-.preheat thesurface f towhich the material is to be applied, so that i' Yeo Yany moisture isremoved from this surface and thesurface bestV prepared for therecep-L tion of` the material i The material Vdischarged in advancerof the'blade will be drawn into line with the-crack bythe rearwardlyconverging groove inthe bottom of the blade ,and` smoothed bythe rear edge of this blade` so' that a neat finish is provided. In restoring material to old cracks, the burners are placed in operation and the heat generated thereby will soften the material lying at opposite sides of the crac-k so that this material may be swept up by the smoothing blade and Y ing from the spirit ofthe invention, I do not limit myself to such specificstructureexcept as hereinafter claimed.

I claim c '1. In a road tool of the character described,

a Vsmoothing bladehaving astraight ground engaging rear portion and a front portion concavely curved at its under surface, .the concavity ofthe front portion of the blade gradually merging with said straight edge whereby a rearwardly converging groove is, produced in` the vbottom of the blade,v means for heating said blade, and means for pro-V pelling the `blade over the road. K

v2. In a roadvtool of the rcharacter described, a smoothing blade having a'strai'ght ground engaging rear portion 'andV a front portion concavely curved at itsundersurface, the concavity of the front portion offtheblade graduallyy merging withsaidl straight edge whereby a rearwardly converging groove is producedV in .the bottomV of the'blade, means for heating said blade, means for propelling the blade over the road, and burners disposed in advance of the blade-and adapted to deliver downwardly converging blasts of flame Vengaging the roadway at opposite sides of a medial plane bisecting the groove.

3. In a road tool of the character described,

a smoothing blade having a straight ground engaging rear portion and a front portion concavely curved at its under surface, the

concavity of the'frontportion of the bladeV gradually' merging with said straight edge Y advance of and in alignmentwith the groove 1 ofthe blade. v 4. In a road tool'of'the ,character described,

a smoothing bladelhavingl a straight ground engaging rear portion and a front portion vconcavely curved at its under surface, the concavity of the front portion of the .blade gradually merging Vwithgsaid straight edge whereby a rearwardly lconverging groove is produced in t-he bottom of the blade, means for heating said blade, means for propelling the blade over the road, burners disposed in advance of the blade and adapted to deliver downwardly converging blasts of flame engaging the -roadway at opposite sides of a medial plane bisecting the groove, and means for delivering crack filling material to the road in advance of and in alignment with the groove of the blade.

5. In a road tool, a handle, a blade secured to the lower end of the handle and extending transversely thereof, the bottom face of the blade having a groove extending in the same general direction as the handle the walls of which converge rearwardly, and means for ieating the blade.

6. In a. road tool, a handle, a blade secured to the lower end of the handle and extending transversely thereof, the bottom face of the blade having a groove extending in the same general direction as the handle the walls of which converge rearwardly, means for heating the blade, and means for delivering crack filling material to the road in advance of the blade.

7 In a road tool, a handle, a blade secured to the lower end of the handle and extending v transversely thereof, the bottom face of the blade having a groove extending inthe same general direction as the handle the walls of which converge rearwardly, means for heating the blade, a tank secured to the lower end of the handle and having an outlet extending over the blade and provided at its forward end with a downturned nozzle discharging in advance of the blade and in alignment with said groove, and means for controlling discharge through said outlet.

8. In a road tool, a handle, a blade secured to the lower end of the handle and extending transversely thereof, the bottom face of the blade having a groove extending in the same general direction as the handle the walls of which converge'rearwardly7 means for heating the blade, and burners arranged in advance of and at opposite sides of the center of Y the blade, said burners delivering blasts of flame which converge downwardly and engage the road in spaced relation to one another.

9. In a road tool, a handle, a blade secured to the lower end of the handle and extending,

transversely thereof, the bottom face of the Vblade having a groove extending in the same 1 of the handle and having an outlet extending over the bladeand provided at its forward end with a downturned nozzle discharging in advance of the blade and in alignment with said groove, means for controlling discharge through .said outlet, and burners arranged in advance of and at opposite sides of the center ofthe blade, said burners deliveringy blasts of flame which converge downwardly and engage the road in spaced relation to one another.

In testimony whereof I hereunto aflix my signature. Y

' NOAH O. VINCENT.

general direction as the handle the walls of Y which converge rearwardly, means for heating the blade, means for delivering crack filling material to the road in advance of the blade, and burners arranged in advance of and at opposite sides of the center of the blade, said burners delivering blasts of flame which converge downwardly and engage the road in spaced relation to one another.

Vl0. In a road tool, al handle, a blade secured 

